Car-underframe.



H. M. PFLAGER.

GAR UNDERFRAME.

APPLIoATloN FILED ooT.2o, 1909.

Patented Mar. 26, 1912.

UNITED STATES PATENT OFFICE.

HARRY CM. PFLAGER, OF ST. MUIS, MISSOURI, ASSIGNOR TBANSOM DRAFT GEAR l COMPANY, 0F ST. LOUIS, MISSOURI, A COBPOBATIONQF DELAWARE.

CAR-UNDERFRAME.

Application filed October 20, 1909.4 Serial No. 583,581.

To all whom it may concern:

VBe it known 'that I, HARRY M. PFLAoi-m, a citizen of the United States, residing at St..Louis, in the State of Missouri, have invented anew and useful Improvement in l("1ar-Underframes, of which the following is a. specification.

My invention relates particularly to means for reinforcing the body-holsters and middle longitudinal sills and subsills thereat, of a car underframe, and has for its object to relieve the bolts or fastenings of the bodyplied to a car body-bolster broken away),

and to the middle longitudinal sills and subsills (indicated b v dotted lines in Fig. 1,

and by full lines in Figs. 2, 3, and 4,) there.

at; Fig. 2, a vertical longitudinal section thereof on line 2, 2, in Fig. 1; Figs. 3, and.

' 4, vertical transverse sections thereof to enlarged'scale, n lines 3, 3, in Figs. 1 and 2 and 4, 4, in Fig. 2, respectively, omitting the body-bolster, and Fig. 5, a vertical longitudinal section to enlarged scale through the brace on line 5, 5, in Fig. 1.

Like letters and numerals of reference denote like parts in all the figures.

a represents the two middle longitudinal sills of a. car underframe having the bodybolster l) attached thereto on their undersides in the ordinary manner, and c the subsills which extend longitudinally between the body-holsters beneath the sills a as posed preferably of cast steel integral hereinafter more particularly referred to, all the said parts being shown broken away.

al is a reinforcing member or plate comthroughout andof any suitable configura- Ition and cross section, preferably in the present case consisting of a middle portion 1 which extends across and is adapted to bear, preferably for the entire distance between the middle longitudinal sills a, flatwise against the top of the body-bolster b, to which it is secured by' bolts 2 as shown, the middle portion 1 being perforated centrally and registering therent with the vertical opening 3 through the body-bolster b for the king-bolt (not shown), and the middle portion 1 being formed at its ends with depending flanges 4 which overlap and are adapted to bearagainst the front and rear edges (or sides) 5 of the bolster b which is thereby interlocked with the memberd.

From the bottom ofeach depending flange 4 extends horizontally for a suitable length or distance therefrom, the corresponding en d portion 1 of the member d having its width equal preferably, to the distance between the outside upright faces of the middle longitudinal sills a against the underside of which it is adapted to bear, and to which 1t 1s firmly secured, preferably by bolts 6, the inner ed e of each end portion 1 beneath each sill a having nan upwardly projecting flange 4 which corresponds in alinement with the flange 4 and bears therewith Patented Mar.26,1912. I

soy

against the edge 5 of the bolster b at the top.

united to the end portion 1 along the same,

by a suitable strengthening rib .9, and is adapted at its outer face to bear a ainst the adjacent end of the subsill c whic extends beneath and against the sill a to the corresponding flange 8 of a similar member to d applied to the bolster (not shown) and sills a at the other end of the car underframe, while the end port-ion 1 forward of the bolster b is preferably plain as shown.

In the above construction, by adapting the middle portion 1 of the member cl to straddle and, conjointly with the inner flanges 4 of the end portions 1 to interlock with the top portion of the body-bolster, combined wit-h the connection of the middle longitudinal sills a together by the end ortions 1', and the abutting of the subsil s c against the rear end of the member d, the

body-bolster is prevented from lateral playV What I claim as my invention and desire to secure by Letters Patent is:

In a car underframe,the combination Wit-h a body bolster and the center sills of the nnderfr'ame, of a reinforcing member, which is readily detachable from the body bolster by vertical movement of said `reinforcing member, or sal-,id bolster, which reinforcing member comprises a center plate overlying the center of the body bolster, longitudinally extending vertically disposed ribsintegral With the sides of said center plate, the ends of which ribs project equal distances in front of and to the rear of the ends of the center p1ate,`horizontally disposed plates integral With the projecting ends of the longitudinally extending ribs, which last mentioned plates occupy a plane below the plane occupied by the center plate, thereby forming transverse shoulders at the ends of the center plate which boar against the [ront and rear edges of the body bolster, vertically disposed plates integral with the rear ends of the pair of rearwardly projecting plates, which' vertically disposed plates `bear directly against the ends of the snbsills of the car underframe, vertically disposed reinforcing Webs integral With the inner edges of the vertically disposed plates and the correspondingl pair of horizontally disposed plates to the rear of the center p`late,'ineans for rigidly fixing the center plate to the top chord of the body bolster and .means tor {ixingthe pairs of ribs to the center sills ot the car nnderfrarne.

Y HARRY M.l PFLAGER. Witnesses:

HAL C. 'BnLLviLLn EDWARD W. FURRELL. 

